Results 301 to 310 of about 1,242,505 (361)

Magnetic resonant coupling for magnetic induction wireless communication

IETE Journal of Research, 2013
AbstractIn the last decade, magnetic induction (MI) communication has drawn the attention of researchers to alternate the EM communication in some environments, such as the underground environment, littoral environment, underwater environment, and caves.
Di Niu, Kai Shuang, Weigen Li
openaire   +1 more source

Ferromagnetic resonance of exchange-coupled magnetic layers

Physical Review B, 1988
The ferromagnetic resonance-line shapes, fields, and intensities of exchange coupled magnetic multilayers are calculated as a function of exchange coupling and number of layers. We find that the number of magnetic excitations equals the number of layer pairs that make up the layered structure.
openaire   +2 more sources

On the Use of Magnetically Coupled Resonators for Chirp-Based Timestamping

IEEE Transactions on Instrumentation and Measurement, 2015
The knowledge of the time value at which an event of interest occurred is the typical feature needed to perform many kinds of postprocessing in distributed sensor networks. Consequently, network-based distributed systems must support time dissemination in order to ensure that relative clock errors among nodes remain below a certain threshold.
DE ANGELIS, ALESSIO, DIONIGI, Marco, MOSCHITTA, Antonio, CARBONE, Paolo, Sisinni, Emiliano, FERRARI, PAOLO LUIGI, Flammini, Alessandra, Rinaldi, Stefano   +7 more
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Magnetic Resonance Coupling Systems

2020
A magnetic resonance coupling circuit is a circuit topology (circuit structure) that can achieve high efficiency and high power even in the presence of large air gaps. However, when considering the design of these systems, it is important to achieve both high efficiency and the desired power simultaneously.
openaire   +1 more source

Nuclear magnetic resonance spectroscopy. Carbon-carbon coupling

Journal of the American Chemical Society, 1972
One-bond, carbon-carbon coupling constants have been observed for several series of compounds containing ^(13)C in its natural abundance of 1.1% at both sites. The small (10-15 Hz) coupling constants in cyclopropanes show that the carbon-carbon bonds have low s character.
Weigert, Frank J., Roberts, John D.
openaire   +3 more sources

Probe–Sample Coupling in the Magnetic Resonance Force Microscope

Journal of Magnetic Resonance, 2002
The magnetic resonance force microscope (MRFM) provides a route to achieving scanned probe magnetic resonance imaging with extremely high spatial resolution. Achieving this capability will require understanding the force exerted on a microscopic magnetic probe by a spatially extended sample over which the probe is scanned.
Suter, A., Pelekhov, D. V., Roukes, M. L., Hammel, P. C.   +3 more
openaire   +3 more sources

Resonant Analysis of Magnetic Coupling Wireless Power Transfer Systems

IEEE transactions on power electronics, 2019
For a general multi-coil magnetic coupling wireless power transfer (MC-WPT) system with different coil properties and non-negligible cross couplings, there is no analytical solution that connects the resonant frequencies of the system to its electric ...
Z. Liao, Yue Sun, Z. Ye, Chunsen Tang, Peiyue Wang   +4 more
semanticscholar   +1 more source

Double Magnetic Resonance of Coupled Spins

Journal of Applied Physics, 1967
A perturbation procedure is introduced to solve for the probability amplitudes of a system of coupled spins under the action of two rf magnetic fields; one a large saturating signal, the other a relatively weak one. The power absorbed when the saturating signal connects two states in the system is affected by the presence of the second signal ...
openaire   +1 more source

Strongly coupled resonance magnetic for RFID applications

2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2013
Wireless power and data transfer (WPDT) through the strongly coupled magnetic resonance (SCMR) method at an RFID frequency is reported. The proposed system consists of four single resonant loops, in contrast to the two resonant loops traditionally used in RFID.
Olutola Jonah, Stavros V. Georgakopoulos, Shun Yao   +2 more
openaire   +1 more source

Pharmacological applications of magnetic resonance imaging.

Psychopharmacology bulletin
Magnetic resonance imaging (MRI) techniques are capable of spatial and temporal resolution and within subject repeatability that far exceed other currently available methods of noninvasively investigating brain functioning.
B. Salmeron, E. Stein
semanticscholar   +1 more source